You do realize that the entire purpose of skills like smithing and enchanting are to make your equipment stronger, right? That helps you in combat. (And potions give you aid in combat, as well, obviously.)
If you're going to powerlevel your smithing, then make yourself some shiney new gear out of the deal, and having double your previous armor and damage ratings will be your reward for doing so.
Seriously, smithing makes melee combat easier, not harder, you basically deal double damage with a fully upgraded weapon.
Agreed - but only on Smithing and Enchanting. It's a high level in those two that lets me smack anything into the ground in a hit or two, just as much as combat skills. EDIT: Actually, I wouldn't be doing quite so well if I lacked the combat perks to go along with them. So OP kinda has a point for those, as well.
That said, Sneak and Alchemy are MUCH less useful in combat than other skills. (Alchemy, I presume, is only good in combat if you like guzzling potions while doing mediocre damage, or open up your menu to use a poison after every blow...hey, there's an idea. Automatic posion-adding mod.)
And Speechcraft, Lockpicking, and Pickpocket are outright useless.
So I second the OP, just only as, say, reduced "combat exp" for Sneak and Alchemy, and none at all for Speech/Lock/Pickpocket.